Malicious PDF — malware analysis report

Static analysis result for SHA-256 7206ad5ec3dbe424…

MALICIOUS

PDF

114.7 KB Created: 2021-02-21 15:21:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: a83798ebaaad0d9b60e95d4c2f2e94d2 SHA-1: ef6aba8cb2f732bd1d59a57f67148f4d8cf1b824 SHA-256: 7206ad5ec3dbe424b27a526d0aa11e4d9c2fd3123297491c53ea8e7c79ea1fa1
244 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains a large number of embedded links, many of which point to disposable hosting services and appear to be part of a link farm. The primary URL, 'https://crophysi.ru/aws?utm_term=fish+farming+project+pdf+in+hindi', suggests a phishing or scam attempt. The document's structure and numerous external links indicate it's designed to redirect users to malicious infrastructure, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://crophysi.ru/aws?utm_term=fish+farming+project+pdf+in+hindi In PDF document text
    • https://jolibudowuw.weebly.com/uploads/1/3/4/5/134596284/lovanaro-pefobakamiwat-vepavewatosik-liladovaviba.pdfIn PDF document text
    • http://rodina38.ru/gdt_11_manualwjewp.pdfIn PDF document text
    • https://towipikegogu.weebly.com/uploads/1/3/4/6/134690187/fepedezen.pdfIn PDF document text
    • http://gatorama.site/kaxagoforowa0k77e.pdfIn PDF document text
    • https://pejolufuti.weebly.com/uploads/1/3/4/0/134018137/8216779.pdfIn PDF document text
    • https://dizuvojuxi.weebly.com/uploads/1/3/1/1/131163617/kalik_gobiwesasi_wimodusixa.pdfIn PDF document text
    • https://lirefabagobaxi.weebly.com/uploads/1/3/4/0/134012393/2766d.pdfIn PDF document text
    • https://xizexinapak.weebly.com/uploads/1/3/4/3/134359948/befaponiwibuxa_taginometorovom.pdfIn PDF document text
    • https://rorezumi.weebly.com/uploads/1/3/4/5/134591247/bedenojonetof-zuwonupuxirogax.pdfIn PDF document text
    • https://lasogevedona.weebly.com/uploads/1/3/1/3/131398076/lefajejuwovi.pdfIn PDF document text
    • http://winoraama.fun/457288242491hbit.pdfIn PDF document text
    • https://nugukijozagesek.weebly.com/uploads/1/3/0/7/130739433/sotom-povulimim-sulakijobowod-vezenaj.pdfIn PDF document text
    • https://nevajuto.weebly.com/uploads/1/3/2/6/132695651/1900006.pdfIn PDF document text
    • https://pepexelizuruxu.weebly.com/uploads/1/3/4/6/134656498/taniko-webidirip.pdfIn PDF document text
    • http://usesalle.xyz/trading_options_for_dummies_audiobook88zum.pdfIn PDF document text
    • http://nuveclovet.xyz/mokawzucpn.pdfIn PDF document text
    • https://kizifafub.weebly.com/uploads/1/3/4/7/134714450/vitorekete.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jiporiri.rf.gd/ions_are_formed_when_atoms.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00016ae4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16AE4 5568 bytes
SHA-256: b5631231791c7a56435f0c34da294f78ec896945158cebd0f35806a84a7424ff
font_01_sfnt_off00017db8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17DB8 12932 bytes
SHA-256: e040b11cba1c6d120fb758ddec2783a983e30f84923b13478a7ee46bea676499
font_02_sfnt_off0001a7b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A7B6 16132 bytes
SHA-256: 267fa55b14ef4cf900efb316cf3a679441c5cb47c67db7c400ecf172ea91784f